Novel Codebook-based MC-CDMA with Compressive Sensing Multiuser Detection for Sporadic mMTC

Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearchpeer-review

Massive machine type communication (mMTC) is one of the basic components of the future fifth generation (5G) wireless communication system. In mMTC, the information processing at the sensor nodes is required to be simple, low power consuming and spectral efficient. In order to increase the spectral efficiency at the cost of minimum performance loss and to simplify the information processing at the sensor node, in this paper a codebook based spreading technique is proposed. In the proposed scheme, first, the modulation and spreading are combined into a direct symbol-to-sequence spreader, which directly maps the input bits into a codeword from the user specific codebook. Secondly, utilizing the sporadic node activity of the mMTC a compressive sensing based algorithm is designed for multiuser activity and data detection. Exploiting the multidimensional structure of the codebook, the required signal to noise ratio (SNR) to increase the modulation order, is reduced as compared to the conventional scheme. Besides reducing the power consumption, it is shown that for modulation order of eight, the proposed scheme achieves a gain of 1 dB over the conventional scheme at bit error rate (BER) of 10 -5. However, more sophisticated decoding algorithm is required to achieve the performance gain at a lower modulation order.

Original languageEnglish
Title of host publication2018 IEEE Globecom Workshops, GC Wkshps 2018 - Proceedings : Non-Orthogonal Multiple Access Techniques for 5G Workshop
Number of pages6
PublisherIEEE
Publication year19 Feb 2019
Article number8644174
ISBN (Electronic)9781538649206
DOIs
Publication statusPublished - 19 Feb 2019
EventGlobecom 2018 workshop on BUSINESS MODEL INNOVATION (BMI) AND SOCIO-ECONOMIC IMPACTS IN IOT - Abu Dhabi, United Arab Emirates
Duration: 9 Dec 201813 Dec 2018
http://globecom2018.ieee-globecom.org/workshop/ws-25-bmiiot-business-model-innovation-bmi-and-socio-economic-impacts-iot

Workshop

WorkshopGlobecom 2018 workshop on BUSINESS MODEL INNOVATION (BMI) AND SOCIO-ECONOMIC IMPACTS IN IOT
LandUnited Arab Emirates
ByAbu Dhabi
Periode09/12/201813/12/2018
Internetadresse

    Research areas

  • Compressive sensing multiuser detection, NOMA, codebook based spreading, machine type communication

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